🧮
Amazing Abacus
Institute
Add / Subtract Mode
🔵 Add 🔴 Subtract
➕
Mixed 1 & 2 Digit Addition
1-digit + 2-digit • Answer ≤ 99
➕➖
Mixed 1 & 2 Digit Add / Sub
Keep total 1–99 • Super fun!
⬆️
Advanced Addition
Go beyond 100 • Neon mode!
⚡
Advanced Add / Sub
Never go negative • Epic challenge
✖️
Multiply · 2-digit × 1-digit
Golden flashes • Pure brain power
✔ Correct: 0
✘ Wrong: 0
1 / 10
0%
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0
YOUR ANSWER